Section 15.05 - Enrollment(1) The Secretary may establish a period of Enrollment. Such Enrollment period may be continuous.(2) Enrollment in the Plan is voluntary and available to all persons eligible under 651 CMR 15.04, unless a determination is made by the Secretary to close Enrollment.(3) The Secretary shall close Enrollment after making a written determination that Plan expenditures are projected to exceed the amount appropriated for the Plan. Such determination may also be made if, based on not less than nine months of claims and Enrollment data for the current Fiscal Year, expenditures in the subsequent Fiscal Year are clearly projected to annualize beyond the expenditures projected by the Secretary in the subsequent Fiscal Year.(4) Persons eligible under 651 CMR 15.04 ( 1) (b) may join or re-join the Plan at any time during which Enrollment is open.Amended by Mass Register Issue 1327, eff. 12/2/2016.Amended by Mass Register Issue 1408, eff. 1/10/2020.